coolant smell when heat is on.
12-24-2016, 01:41 PM
#17
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Location: Anderson, SC
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Year: 1999
Model: Cherokee
Engine: 4.0
Mine is showing the telltale signs of fog on windshield and Coolant scent when turning on heat.
Is this clearly a heater core issue?
If so, are there new and improved easy ways to fix it?
Is this clearly a heater core issue?
If so, are there new and improved easy ways to fix it?
12-25-2016, 09:35 PM
#22
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Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
- Yes.
- Yes.
- Yes.
Might as well do the evap while you're in there. It adds a few bucks to the project, but you really don't want to have to do it again for a while.
12-27-2016, 08:42 AM
#24
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Year: 1999
Model: Cherokee
Engine: 4.0
I was hoping to get on it today or tomorrow while I'm off but I was able to order a core and evaporater shipped from rockauto for less than a condenser alone at autozone.
12-27-2016, 09:13 AM
#25
CF Veteran
Before anyone starts pulling the heater core. If the hoses are tight against the firewall make sure they aren't leaking into the interior. They do get old and soft/rot. Seen this a few times. Can't hurt to check.
12-27-2016, 03:19 PM
#28
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Year: 2001
Model: Cherokee
Engine: 4.0
Air enters the box (under the filter) right behind the rad cap and hoses. If coolant gets splashed/leaks around there it can make it's way into the box pretty easy. Found this out after a coolant flush by a sloppy mechanic once. Had fumes in the cab with the air on, found a puddle in the box, wiped it out, put it a new filter, and the smell went away. Sounds like you've got something else going on, but never hurts to check the simple stuff before tearing into a job. Good luck!
12-28-2016, 09:56 PM
#29
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Year: 1999
Model: Cherokee
Engine: 4.0
Air enters the box (under the filter) right behind the rad cap and hoses. If coolant gets splashed/leaks around there it can make it's way into the box pretty easy. Found this out after a coolant flush by a sloppy mechanic once. Had fumes in the cab with the air on, found a puddle in the box, wiped it out, put it a new filter, and the smell went away. Sounds like you've got something else going on, but never hurts to check the simple stuff before tearing into a job. Good luck!
Ah man, never wished for fluid in my airbox until now. Oh well, parts are incoming. I'm not the most patient. Hopefully I won't destroy something in the process.